Rivet bucking tool



June A10, 1947. c. c. BRADEN RIVVET BUCKING TOOL Filed Jan. 18, 1944Invntor '0f/gems 5251051/ 5 w w n Patented June 10, 1947 UNITED STATESPATENT OFFICE 1 Claim.

number of different heads may be selectively employed to meet thevarying requirements of use.

An object of the present invention is to provide an improved rivetingtool of the above kind which is durable and efiicient in operation, andwhich can be manufactured and sold at a comparatively low cost.

The invention consists in the novel form, comination and arrangement ofparts hereinafter more fully described, shown in the accompanyingdrawings and claimed.

In the drawings, wherein like reference characte-rs indicatecorresponding parts throughout the several views:

Figure l is an elevational view of a bucking tool embodying the presentinvention.

Figure 2 is a plan View thereof with the bucking head removed.

Figure 3 is a fragmentary longitudinal section taken on line 3--3 ofFigure 2.

Referring in detail to the drawings, the present riveting or buckingtool consists generally of a bucking head BA and a holder I-I therefor,the bucking head having an elongated squared shank 5, and the holderhaving a polygonal socket 6 for removable reception of said shank 5 ofthe bucking head.

The holder shown embodies a socket of the box type 1 whose socket 6 isof star shape for a purpose well known in the wrench art and laterexplained herein with respect to the bucking heads. An upwardly andlaterally curved integral shank 8 is provided on the socket 1, the outerend of which shank is enlarged and provided With a reduced threadedextension, as at 9. The threaded extension 9 is detachably threaded inone end of a main shank section of a handle indicated at I l) andconsisting of a section of pipe whose outer end is externally threadedand has one end of a coupling sleeve II screwed thereon, as at I I. Asolid head I2 is provided on the outer end of the handle to add weightthereto when desired, said head having a reduced threaded stem I3screwedinto the outer end portion of coupling sleeve I I. The socket 6of socket memher 'l is of a size to snugly receive and have nonrotatingengagement with the shank 5 of the bucking head B, the star shape ofsocket 6 permitting engagement with the shank 5 in any one of manydifferent positions of rotary adjustment of the shank 5 with respect tothe socket mem ber l. Thus, the relation of the holder to the buckinghead may greatly vary while permitting engagement of the socket member'l with the shank 5 oi' the bucking head. Socket member 1 has a setscrew I4 which may be threaded inwardly to impinge the shank 5 of thebucking head and thereby secure the latter in the socket during use. Thehandle of the holder shown in Figures 1 to 3, inclusive, may be providedwith an extension when a longer handle is desired. This is simply doneby removing the head I2 and threading another tubular shank section Illainto the outer end of coupling sleevel I.

From the foregoing description, it is believed that the construction andmanner of use, as Well as the advantages of the present invention, willbe readily understood and appreciated by those skilled in the art. It isnoted that the present tool is especially adapted for use in buckingaluminum or like rivets, such as are used in aircraft construction andwhich can be upset by the use of a bucking tool of light weight.

What I claim as new is: A rivet bucking tool comprising a bucking headhaving an elongated squared shank, and a holder for said fbucking headincluding a box-type socket member having a star-shaped socket andprovided at one side with an upwardly and laterally curved relativelyshort shank formed with a reduced threaded outer end, a handle includinga tubular section having the outer end of said shank removably threadedin one end thereof, a coupling sleeve removably threaded on the outerend of said tubular section, and a solid plug weight having a reducedthreaded end screwed into the outer end of said coupling sleeve, saidshank of the bucking head being longitudinally adjustable through saidsocket, and a set screw carried by said socket for securing the shank ofthe bucking head -in adjusted positions.

CHARLES C. BRADEN.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS

